fiber duplex

carl_townshend · ‎04-16-2008

Hi all, is it possible to run half duplex over fiber, or can you only run full duplex ?

s.marino · ‎04-16-2008

Fiber connectivity is at Full Duplex only.

Hope this answered your question.

Sal

carl_townshend · ‎04-17-2008

why can it only run at half duplex ?

sdrossen2 · ‎04-16-2008

What are you wanting to accomplish with running fiber at half duplex? The answer as Sal said is no but there has to be a reason why you want to do this.

carl_townshend · ‎04-18-2008

Hi there, it is more of a technical question of why we cant do it ?

ciscograyaw · ‎04-18-2008

If you're asking 'can you run fiber using only one strand instead of two' then the answer is yes - with BX SFPs you can use only a single strand, at two different wavelengths.

With fiber, you have either 2 distinct fibers (normal runs) or 1 fiber at 2 wavelengths (BX interfaces), so there's always a dedicated send and receive line - there's no need for half-duplex.